Objective-C Jobs

I’m looking to have a social networking app built from the ground up for both iOS and Android. The core concept is straightforward: users create profiles, connect with friends, and share posts in a scrolling feed. Here’s what I need: • A clean, intuitive front-end written natively or in a proven cross-platform framework (Swift/SwiftUI + Kotlin, or React Native/Flutter if you prefer). • Basic account management with email or phone verification, plus options to log in with Apple and Google. • Real-time feed where users can post text, images, or short videos, like and comment, and see updates instantly. • Simple search to find other users by name or username and send connection requests. • Push notifications for new likes, comments, and connec...

I need a single app that runs on both iPhone and Android and blocks spam or unknown callers automatically. Whenever a call comes in, the app must check two sources in real time: • the device’s own contact list • a cloud-based “safe numbers” database I already host (REST endpoint provided) If the number appears in either source, the phone rings as normal. If not, the call is silently routed straight to voicemail. Every incoming attempt—allowed or blocked—should be logged inside the app so the user can review which numbers tried to get through. Core requirements • Native-feeling solution that complies with CallKit / Call Directory Extension on iOS and the equivalent Telephony APIs on Android so filtering keeps working even when the app ...

I am looking for a skilled developer to build a mobile app called "Smart Egg Tester." The app will connect via Bluetooth to a hardware device and display the following information: - Egg freshness level - Egg age (in days) - Safety status (Fresh / Safe to Eat / Not Safe) The app should also include basic data storage functionality to maintain a history of test results. I already have the UI design ready, which will be shared with the selected developer. The project needs to be completed within 4-6 weeks.

I need a complete mobile application for both the Apple App Store and Google Play whose core purpose is editing Video and audio. The app must natively handle both Audio and video content in a single, unified experience with smooth playback, quick switching between media types, and a modern, intuitive interface that reflects the brand’s style. StudioFlow 1. Ability to record audio and video(wav, mp3, mp4) 2. Ability to upload audio video files 3. Everything beomes AutoSave 4. Ability to record/upload video a. Trim b. Extract Audio as mp3/wav(Export, Volume, Mute, Remove) c. Ability to Add New track(Export, Volume, Mute, Remove) d. Any audio file when selected can be attached effects like Echo and Reverb(See Attached Screen Shots) e. Ability to Export Video, with Audio and Also effect...

The build is done, the binaries are packaged, and I now need an experienced developer to carry the project across the finish line by getting the app live on both the Apple App Store and Google Play. Here’s what remains: • Prepare and upload the existing iOS and Android packages, including all signing, certificates, provisioning profiles, and Play Console assets. • Complete the store listings — screenshots, descriptions, privacy details, policy compliance, and age ratings. • Respond to any review feedback and resubmit if required until both stores approve the release. I’m moving fast and would like this wrapped up as soon as possible, so proven experience navigating Apple’s App Store Connect and Google Play Console review processes is essential...

Saya ingin membuat sebuah aplikasi permainan khusus untuk platform iOS. Fokus saya adalah menghadirkan gameplay yang sederhana namun adiktif, lengkap dengan grafik 2-D ringan agar mudah dijalankan di sebagian besar perangkat iPhone dan iPad terbaru. Lingkup kerja: • Merancang konsep permainan, alur level, serta mekanisme skor. • Membuat prototipe fungsional di Xcode menggunakan Swift, SpriteKit, atau framework lain yang Anda rekomendasikan untuk kinerja optimal. • Mendesain antarmuka dan aset grafis dasar—ikon, layar menu, efek suara singkat. • Mengintegrasikan fitur penting iOS, seperti Game Center untuk leaderboard dan penyimpanan data lokal. • Mempersiapkan build TestFlight agar saya dapat menguji permainan sebelum proses rilis App Store. H...

Necesito una aplicación de topografía nativa para iPhone que permita a los usuarios: • Medir distancias con precisión usando la cámara o el GPS del dispositivo. • Realizar nivelación automática mostrando la desviación en tiempo real. • Navegar sobre un mapa interactivo donde puedan situar y guardar puntos de interés. La captura de datos será principalmente mediante entrada manual en formularios claros y rápidos; sin embargo, el código debe quedar preparado para que más adelante podamos añadir voz o sensores si el proyecto crece. Al finalizar cada sesión, la app generará informes detallados en PDF y/o Excel con toda la información recolectada, listos para com...

I need a clean, minimalistic animated highlight for the five-item bottom navigation bar in my iOS app (Routes, Activity, Navigate, Challenges, Profile). When a user taps a tab, a rounded rectangle should slide to the new position with a springy, slightly bouncy motion that feels fluid at 60 fps. The highlight will stay a single, neutral accent color; no per-tab color changes are required. Please implement this in Swift (UIKit or SwiftUI—whichever you prefer) and deliver: • fully-commented source code or a small demo project showing the component in action • integration notes so I can drop the view into my existing codebase without breaking Auto Layout or Safe Area constraints Acceptance criteria: the animation must start the moment a tab is pressed, complete smoot...

Title: Simple iOS Habit Tracker App (Farm / Tree Concept) Description: Hello, I’m looking for a developer to build a simple MVP iOS app. The concept is a habit challenge app where users break bad habits and build good habits using a farm/tree system. Main idea: Users select up to 4 habits. Each habit has a small farm with 30 plots. Every successful day plants a tree in the farm. Over time the farm fills with trees showing the user's progress. Features (MVP): • Up to 4 habits per user • Daily button: "Done for today" • Farm with 30 plots per habit • Tree appears when the user completes the day • Small achievement messages • Simple history/calendar view • Local storage only (no login, no backend) Platform: iOS only (first version...

I want a lightweight iOS-only application that guides users through a 30-day “break the habit” challenge. A user can enter up to four habits at the start; from there, each calendar day presents a single confirmation screen. When the user logs success for all chosen habits that day, an illustrated tree grows—advancing to a new stage every seven consecutive successful days and unlocking a small achievement badge. Core flow • Welcome screen → add (or edit) up to four habits • Daily check-in screen with a single, clear “Done for today” interaction • Animated tree that visually grows at days 7, 14, 21, 30 • Simple history view summarising which days were completed or missed The interface should stay clean, friendly and motivat...

Estoy atascado con la validación de las transacciones de las compras in-app de mi aplicación iOS. Los productos ya aparecen en App Store Connect y la interfaz de usuario de compra se muestra sin problema, pero al procesar la operación me devuelve errores de validación y la transacción no queda registrada correctamente. Necesito que revises conmigo la configuración actual en App Store Connect y el código que uso con StoreKit / Swift. El objetivo es: • Detectar y corregir la causa de los errores de validación. • Ajustar la lógica para registrar y finalizar las transacciones de forma segura. • Probar las compras (incluida la restauración) en el entorno sandbox hasta que queden completamente funcionales....

I’m kicking off a brand-new social networking mobile app and want to start with one rock-solid cornerstone: user profiles. Your task is to design and code this core module so we have a clean, extensible foundation for all future features. Here’s what I need from you: • A fully functional profile screen where users can view and edit their photo, bio, and basic details. • Secure account creation and authentication (email, Google, or Apple—whichever you’re most comfortable implementing first). • Simple back-end or cloud setup to store and fetch profile data reliably. • Clear documentation and commented code so any developer joining later can pick up where you leave off. • A short walk-through video or call at hand-off showing how eve...

I have a live SwiftUI-based social app that already ships chat, video feeds, stories, live scenes, an in-app currency (stars) and subscription flow. The code follows MVVM, talks to a set of REST back-ends and is in the store today. What I need now is an experienced iOS engineer who can drop into the existing project, diagnose issues quickly and raise the overall quality bar. The immediate focus is three-fold: • First, do a thorough walkthrough of the current codebase so you understand our MVVM layers, networking helpers and IAP logic. • Next, remove bugs that are spiking our crash reports and tighten up general stability. • Finally, tune performance in the chat and media areas, then layer in a handful of small feature requests we already have queued for those modules....

I want to swap the live camera feed on an older, jail-broken device (iOS 13–14 running Dopamine or a similar rootless setup) with a predefined asset so I can study how iOS handles media input. The tweak should let me point the system camera APIs to either: • a single static image (JPEG or PNG) • a looping video file (MP4) Ideally I can drop the asset into a folder or set its path in a simple prefs bundle, then toggle between “live”, “image”, and “video” without rebooting. No need for App Store integration, entitlement trickery, or third-party service hooks—this stays strictly on-device for personal, non-commercial testing. Deliverable • Rootless .deb that installs cleanly on Dopamine • Preference pane (or command-li...

I’m ready to move from concept to code on a brand-new productivity app and need a developer who can deliver a polished experience on both iOS and Android from day one. At its core, the app must let users create and track tasks, view and sync those tasks with their calendar, and collaborate seamlessly with teammates in real time. The flow should feel effortless: • quick task capture with priorities and due dates, • automatic calendar updates so schedules stay in sync, • shared workspaces where team members can comment, attach files, and see progress instantly. A clean, distraction-free interface is vital; think intuitive gestures, subtle animations, and fast load times even on older devices. Whether you prefer Swift + Kotlin, Flutter, or React Native, I’m o...

I need a compact yet capable duo—one creative UI/UX designer and one iOS developer—to bring a friendly pregnancy-companion app to life. The concept is straightforward: each week the baby’s growth is visualised with a fruit-size comparison and accompanied by an encouraging message to the mother. Your scope covers everything from fleshing out a clean, mother-centric interface in Figma or Sketch through to native Swift development, internal TestFlight testing and final submission to the Apple App Store. I want this handled end-to-end so I’m not juggling multiple freelancers. Deliverables • High-fidelity UI/UX files and clickable prototype • Swift-based iOS app that mirrors the approved designs • App Store–ready build with screenshots, descr...

I’m looking for a Swift-savvy iOS developer who can turn my finished Google AI Studio design (supplied as TSX files) into a production-ready SwiftUI application that downloads video and audio from popular social networks. Here is the full scope of work: • SwiftUI build: translate every screen from the existing TSX design into clean, maintainable SwiftUI code, keeping the original look and feel intact and making sure the layout is 100 % iPhone-compatible, all the way back to the oldest iOS version still accepted by the App Store. • Background downloading: implement reliable, resumable downloads so users can leave the app while large files finish in the background. • No login flow: the app must work without any form of user authentication. • Local storage ...

Our production Android app is stable in the market, but I now need a rapid, one-month push to get the entire platform ready for a broader launch .The existing codebase will be shared the moment we agree on the scope, after which I need you to work end-to-end across web services and mobile. Here is what has to happen during the sprint: • Backend upgrades – Refactor database management for speed and reliability – Tighten user authentication flows and token handling – Clean up and extend API interactions so both mobile clients consume a single, consistent layer – Add real-time notifications (push and in-app), advanced analytics collection, and payment processing • Front-end polish on the current Android build – Refresh the user in...

I need an expert app developer to create a new product for both iOS and Android platforms. This project is highly confidential, and I require someone who is not only skilled but also discreet. Key Requirements: - Expertise in developing apps for both iOS and Android - Proven track record of successful app development - Strong understanding of security and confidentiality protocols - Ability to work independently and manage project timelines effectively Ideal Skills and Experience: - Experience with cross-platform development tools - Knowledge of current market trends and user preferences - Strong problem-solving skills and creativity Please provide examples of previous work and a brief outline of your approach to maintaining project confidentiality.

I need a fully-featured mobile app published on both Google Play and the App Store so my patients can reach me easily and securely. The core experience is a private messaging channel between each patient and myself, backed by phone-number authentication with a one-time password flow (no email or social log-ins). Inside the chat screen patients should be able message and also start voice with a single tap. All conversations, calls, and bot interactions must remain HIPAA-compliant and encrypted in transit and at rest. I am open to the tech stack—React Native, Flutter, or native Swift/Kotlin are all fine—as long as the final build passes App Store and Play Store review guidelines. You will also set up the lightweight backend necessary for OTP verification, real-time messaging, ...

I need a seasoned system-level engineer to build a truly standalone mobile operating system—not just an Android or iOS fork. The goal is to deliver a fully bootable image that ships with: • A visually distinctive, lightweight user interface designed from the ground up for touch • Security enhancements at kernel, system service, and application layers (hardened permissions, secure boot, encrypted storage, etc.) • A native app-store framework so third-party developers can publish, sign, and update apps over-the-air You’ll own everything from low-level board support through to UX polish, so experience with toolchains such as GCC/Clang, device tree configuration, kernel customization, and UI frameworks (Wayland, Qt, or similar) is essential. If you have previ...

I already have a Rork-built mobile app for our radio station. The MP3 stream plays perfectly in the existing player, but the moment I try to send the audio to an external speaker via AirPlay on an iPhone, nothing happens. Here’s exactly what I need: • A clean implementation of AirPlay that works on iOS 14 and newer. • Coverage for every audio event in the app, not just the built-in player, so listeners can seamlessly switch to AirPlay any time music is playing. • No change to the current MP3 streaming flow—just add the AirPlay layer. I’ll hand over the current Xcode project (built with Rork) and point you to the streaming endpoint. Deliverable is a working build plus the modified source, along with brief notes on the changes you made so I can ke...

I'm seeking a MacOS developer to create a utility application aimed at system optimization. The key focus of the application will be improving the performance and efficiency of Mac systems. Ideal candidates for this project should have: - Extensive experience in MacOS application development - Strong understanding of system optimization techniques - Previous work with utility applications - Excellent problem-solving skills - Ability to work independently and meet deadlines. Please apply if you are able to deliver a high-quality, efficient product.